Home / 3,281.94-4,921.47-1,228.50

Finding the Fourth Proportional to 3,281.94, 4,921.47 and 1,228.50

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Solution

The fourth proportional to 3,281.94, 4,921.47 and 1,228.50 is: 1,842.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.94 : 4,921.47 = 1,228.50 : x
  2. Step 2: Convert to fraction form
    3,281.94/4,921.47 = 1,228.50/x
  3. Step 3: Cross multiply
    3,281.94x = 4,921.47 × 1,228.50
  4. Step 4: Simplify right side
    3,281.94x = 6,046,025.90
  5. Step 5: Solve for x
    x = 6,046,025.90/3,281.94
  6. Step 6: Final answer
    x = 1,842.21

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.